Wall-mounted boiler



1. Wall-mounted boiler

FIG. 1.1 is a top right front perspective view of a wall-mounted boiler;

FIG. 1.2 is a bottom right front perspective view thereof;

FIG. 1.3 is a front elevational view thereof;

FIG. 1.4 is a left side elevational view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the article, and form no part of the claimed design. 

CLAIM The ornamental design for a wall-mounted boiler, as shown and described. 